MAXPEEDINGRODS 51IOCT Barrel Carburetor Engine 1904R 1906R 5.0L 5.7L

( Brand: Maxpeedingrods ), ( Manufacturer Part Number: 51IOCT ), ( California Prop 65 Warning: California Prop 65 Warning ), ( Cfm: 650/750 ), ( Choke Type: Electric ), ( Compatible Make: For Chevrolet ), ( Compatible Year: 1980 1981 1982 1983 1984 1985 1986 1987 1988 1989 ), ( Engine: 5.0l 305cu, 5.7l 350cu ), ( Features: Constant-vacuum, Down Draft, Quadrajet ), ( Fitment 1: For Quadrajet 4mv 4 Barrel ), ( Fitment 2: For Chevy 5.0l 305cu, 5.7l 350cu 1980-1989 ), ( Fitment Type: Direct Replacement ), ( Items Included: Gasket, Mounting Hardware, O-rings ), ( Manufacturer Warranty: 1 Year ), ( Maximum Flow: Cfm ), ( Mounting Flange Type: Spread Bore ), ( Needle Valve: 3.3 ), ( Note: No Instruction Included ), ( Notice: This Is Aftermarket Replcement Part. ), ( Oe/oem Part Number: 1904r, 1906r, 17066422, 17066425, 17066432, 17066493, 17066553, 17066556, 17066563, 17066605, 17080202, 17080204, 17080207, 17080228, 17080274, 17080282, 17080284, 17081282, 17081283, 17081284, 17081285, 17082230, 17065524, 17067256, 17082280, 17082281, 17082282, 17082283, 17082284, 17083282, 17083283, 17084284, 17067258, 17067266, 17067268, 17084285, 17084288, 17084289, 17067280, 17067284, 17067336, 17068501, 17068503, 17068505, 17068587, 17068590 ), ( Part Type: Intake Fuel System ), ( Type: Carburetor ), ( Universal Fitment: No ), ( Venturi Diameter: 31.7mm )

Review MAXPEEDINGRODS Barrel Carburetor For Chevrolet 5.0l 5.7l Engine fits 305 350 1980–1989

Introducing the Maxxeco 51-IOCT Barrel Carburetor, a high-performance replacement option for Chevrolet engines from 1980 to 1989 with 5.0L and 5.7L 305 and 350 engines, including the 1904R and 1906R models.

The Maxxeco 51-IOCT is an upgraded version of the original stock carburetor. It boasts a 5-branch venturi design, which increases airflow and fuel delivery for improved throttle response, idling stability, and overall engine performance. The barrels are constructed from billet aluminum, ensuring durability and resistance to corrosion.

This carburetor comes with a new electric choke system, offering a smoother start-up experience and eliminating the need for manual choke operation. The choke mechanism is controlled by a switch on the dashboard, making it easy to use.

The Maxxeco 51-IOCT also features a vacuum secondary system, which provides excellent vacuum control for optimal engine performance under various conditions. The vacuum secondary system is adjustable, allowing fine-tuning of the fuel mixture for specific engine requirements.

Additionally, this carburetor includes new needle and seat jet kits for improved fuel delivery and adjustability. The needle and seat jets are designed for better atomization and fuel distribution, resulting in a more efficient combustion process and improved engine performance.

The Maxxeco 51-IOCT carburetor is equipped with a new air cleaner base, which includes an integrated oil filter mount. This design simplifies the installation process and eliminates the need for additional components, making it a more convenient option compared to other aftermarket carburetors.

In summary, the Maxxeco 51-IOCT Barrel Carburetor is a high-performance upgrade for Chevrolet engines from 1980 to 1989 with 5.0L and 5.7L 305 and 350 engines. It offers improved throttle response, idling stability, and overall engine performance thanks to its 5-branch venturi design, electric choke system, vacuum secondary system, and adjustable needle and seat jets. The convenient air cleaner base design simplifies the installation process, making it a top choice for enthusiasts seeking to enhance their classic Chevrolet's power and drivability.

Maxxispeedingrods 51IOCT Barrel Carburetor for Chevrolet 1904r-1906r 305, 350, 5.0l, 5.7l Engines (1980-1989): A Detailed Analysis

The Maxxispeedingrods 51IOCT Barrel Carburetor is a popular aftermarket option for several Chevrolet engines, including 1904r, 1906r, 305, 350, 5.0l, and 5.7l engines manufactured between 1980 and 1989. In this analysis, we'll discuss the advantages and disadvantages of this carburetor to help you make an informed decision.

1. Improved Performance: The 51IOCT carburetor offers better fuel mixture delivery, which results in improved engine performance. It is particularly beneficial for high-performance applications, such as racing or modified engines.

2. Easy-to-Tune: The carburetor comes with adjustable components, making it easier for enthusiasts and mechanics to fine-tune the fuel mixture according to their specific engine requirements. This is crucial for achieving optimal engine performance and efficiency.

3. Durability: Maxxispeedingrods is known for manufacturing high-quality aftermarket parts, and the 51IOCT carburetor is no exception. It is built to last, with robust materials and precision engineering, reducing the need for frequent repairs or replacements.

1. Complexity: Compared to modern fuel injection systems, carburetors like the 51IOCT can be more complex to install and tune. It requires a certain level of mechanical knowledge and experience to ensure proper installation and configuration.

2. Fuel Economy: Carburetors generally do not offer the same level of fuel efficiency as modern fuel injection systems. This can result in increased fuel consumption and higher operating costs, especially in daily driving applications.

3. Emissions: Carburetors can produce higher emissions compared to fuel injection systems. This can be a concern for those who are environmentally-conscious or living in areas with strict emissions regulations.

The Maxxispeedingrods 51IOCT Barrel Carburetor is an excellent choice for Chevrolet enthusiasts seeking improved engine performance and the ability to fine-tune their fuel mixture. Its durability and ease of tuning make it a popular option for those working on high-performance applications. However, it comes with the downsides of complexity, lower fuel efficiency, and higher emissions compared to modern fuel injection systems. Ultimately, the decision to purchase this carburetor depends on your specific needs, mechanical knowledge, and priorities.

If you're looking for improved engine performance and the ability to fine-tune your fuel mixture for a Chevrolet engine from the 1980-1989 period, the Maxxispeedingrods 51IOCT Barrel Carburetor is an excellent choice. However, it's crucial to consider your mechanical expertise, the complexity of the installation process, and the potential trade-offs in fuel efficiency and emissions before making a purchase. If you're unsure about your ability to handle the installation and tuning process, it may be worth considering hiring a professional mechanic to help you out.

Details:

High hardness and corrosion resistance, longer usage life. Drive Type: Electric Choke. Improve the structure during manufacturing process, high accuracy. Let your vehicles speed up in a short time, better driving experience.

1x Carburetor, 1 x Flange Gaskets, Air filter gaskets, Tool for Pushing Plug, 4x Plugs, 8x jets. Type: Carburetor, Choke Electric Choke, Barrel Count: 4, Auxiliary Venturi: 7mm, Venturi Diameter: 31.7mm, Main jets: 190, Air correction Idle 120, Needle Valve: 3.3, cfm : 650/750, Placement on Vehicle: Front, Fitment Direct Replacement. Do not have connector. Control the speed of engine under stable condition, effective operation.

1904R, 1906R, 17066422 17066425 17066432 17066493 17066553 17066556 17066563 17066605 17080202 17080204 17080207, 17080228 17080274 17080282 17080284 17081282 17081283 17081284 17081285 17082230 17065524 17067256, 17082280 17082281 17082282 17082283 17082284 17083282 17083283 17084284 17067258 17067266 17067268, 17084285 17084288 17084289 17067280 17067284 17067336 17068501 17068503 17068505 17068587 17068590. Package Included. Guaranteed Fitment Always the correct part. Replaces Part Numbers.

Aftermarket brand new, ensure superior and reliable quality. Fast, Shipping. As shown in the picture. 5.0L 5.7L Engine 1980 - 1989.

Compact size, less fuel consumption, energy saving and economical. Need to tune based on the actual situation.

part #: 51ioct prices

• $119.00-$179.10

specifications carbcoon:

• for models: 305, 350
• for makes: Chevrolet
• for years: 1980-1989
• brand: Maxpeedingrods
• mpn: 51ioct
• california prop 65 warning: California Prop 65 Warning
• cfm: 650/750
• choke type: Electric
• compatible make: For Chevrolet
• compatible year: 1980 1981 1982 1983 1984 1985 1986 1987 1988 1989
• engine: 5.0l 305cu, 5.7l 350cu
• features: Constant-vacuum, Down Draft, Quadrajet
• fitment 1: For Quadrajet 4mv 4 Barrel
• fitment 2: For Chevy 5.0l 305cu, 5.7l 350cu 1980-1989
• fitment type: Direct Replacement
• items included: Gasket, Mounting Hardware, O-rings
• manufacturer warranty: 1 Year
• maximum flow: Cfm
• mounting flange type: Spread Bore
• needle valve: 3.3
• note: No Instruction Included
• notice: This Is Aftermarket Replcement Part.
• oe/oem part number: 1904r, 1906r, 17066422, 17066425, 17066432, 17066493, 17066553, 17066556, 17066563, 17066605, 17080202, 17080204, 17080207, 17080228, 17080274, 17080282, 17080284, 17081282, 17081283, 17081284, 17081285, 17082230, 17065524, 17067256, 17082280, 17082281, 17082282, 17082283, 17082284, 17083282, 17083283, 17084284, 17067258, 17067266, 17067268, 17084285, 17084288, 17084289, 17067280, 17067284, 17067336, 17068501, 17068503, 17068505, 17068587, 17068590
• part type: Intake Fuel System
• type: Carburetor
• universal fitment: No
• venturi diameter: 31.7mm

seller carbcoon:

• city: Dayton, New Jersey
• # reviews: 9686
• rating: 98.9%

returns carbcoon:

• policy: Returns Accepted
• paid by: Seller
• time: 30 Days

general carbcoon:

• Car Truck Parts Accessories > Air Fuel Delivery > Carburetors
• condition: New

shipping carbcoon:

• service: FedEx Ground / FedEx Home Delivery
• carrier: FedEx
• class: Standard
• cost: $0.00
• type: Fixed
• transit: 4-7 Days

payments carbcoon:

• credit card: Diners-club
• wallet: Apple-pay
• other

offer carbcoon:

• availability: In Stock
• best offers: True
• sold: 0
• options: Ship-to-home
• started: November 13, 2025

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